Mycotic corneal ulcer, unspecified eye

This code signifies an infection of the cornea caused by fungi, leading to an open sore or lesion on the eye's surface. This specific code is used when the affected eye is not documented or cannot be determined.

Apply this code when documentation clearly states a mycotic corneal ulcer without specifying laterality (e.g., "fungal keratitis, unspecified eye"). Supporting documentation includes ophthalmology notes detailing fungal cultures, microscopic examination, or clinical appearance consistent with fungal infection.

• Ensure documentation explicitly states "mycotic" or "fungal" to differentiate from bacterial or viral ulcers.
• Avoid using this code if laterality (right, left, or bilateral) is specified; use the more specific codes (H16.061, H16.062, H16.063).
• Always sequence this code as a primary diagnosis when it is the reason for the encounter.